Radial Attention: O(nlogn) Attention for Long Video Generation with 2-4× Speedup

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lmxyy · 14m ago

Introduce Radial Attention — a static sparse attention mechanism with O(nlogn) complexity for long video generation! Here are some key features: * Plug-and-play: works with pretrained models like Wan, HunyuanVideo, Mochi * Speeds up both training&inference by 2–4×, without quality loss * Compatible with pre-trained LoRAs. When applied to 8-step FusionX LoRA, Radial Attention further delivers a 1.6× speedup

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Radial Attention: O(nlogn) Attention for Long Video Generation with 2-4× Speedup

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